Multi-channel coil and non-invasive prostate coil device
By designing flexible multi-channel coils, the problems of unstable and unclear imaging of the prostate examination coil in the prior art are solved, and the bending fit and high-definition imaging effect are achieved.
Patent Information
- Application Number
- CN202421784219.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing non-invasive prostate examination coils have problems of unstable imaging and unclear imaging, and cannot bend to fit the abdomen and hips freely.
A multi-channel coil is designed, including a flexible coil body. The bent coil body is bent and fitted along the abdomen and hips of the human body. It adopts a 16-channel coil structure, and the adjacent parts of the first coil group and the second coil group overlap to enhance the signal coverage area.
It realizes a soft and freely curved multi-channel coil, with stable and clear imaging, and can be comfortable to fit the abdomen and hips in the human body at close range, improving the imaging effect.
Smart Images
Figure CN222965384U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of magnetic resonance imaging, and particularly relates to a multi-channel coil and a non-invasive prostate coil device. Background Art
[0002] In modern medical technology, magnetic resonance imaging systems are common medical devices with wide applications and obvious effects. Currently, there are two methods for prostate examinations, namely invasive and non-invasive. The non-invasive examination method is to image the lower abdomen by wrapping it with a coil. In the prior art, there are problems with unstable and unclear imaging in this non-invasive examination, and the coil for non-invasive examination also has problems such as inability to bend freely and inability to closely and comfortably adhere to the outer surface of the prostate. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a multi-channel coil and a non-invasive prostate coil device with a soft texture, flexible bending, stable imaging, and clear imaging, so as to solve the problems that the device cannot bend freely to fit the human abdomen and crotch, and the imaging of the device is unclear and unstable.
[0004] The technical solution of the utility model is a multi-channel coil, including a flexible coil body, and the bent coil body bends and fits along the human abdomen and crotch to collect signals from the fitting parts; the coil body includes a first coil group and a second coil group, the first coil group is used to collect signals from the fitting parts of the human crotch, and the second coil group is used to collect signals from the fitting parts of the human abdomen.
[0005] Preferably, the coil body is a 16-channel coil, including a first coil, a second coil, a third coil, a fourth coil, a fifth coil, a sixth coil, a seventh coil, an eighth coil, a ninth coil, a tenth coil, an eleventh coil, a twelfth coil, a thirteenth coil, a fourteenth coil, a fifteenth coil, and a sixteenth coil.
[0006] Preferably, the first coil group is a 2-channel coil, and the first coil and the second coil are arranged in the first coil group;
[0007] The second coil group is a 14-channel coil, and the third coil, the fourth coil, the fifth coil, the sixth coil, the seventh coil, the eighth coil, the ninth coil, the tenth coil, the eleventh coil, the twelfth coil, the thirteenth coil, the fourteenth coil, the fifteenth coil, and the sixteenth coil are arranged in the second coil group;
[0008] The adjacent parts of the first coil group and the second coil group overlap.
[0009] Preferably, both the first coil and the second coil are figure-eight coils. The first coil and the second coil are arranged horizontally in sequence with adjacent parts overlapping, and the adjacent part of the second coil overlaps with the adjacent part of the second coil group.
[0010] Preferably, the third coil, the fourth coil, the fifth coil, the sixth coil, the seventh coil, the eighth coil, the ninth coil, and the tenth coil are arranged in a four-row and two-column structure with adjacent parts of adjacent coils overlapping; the fourth coil and the fifth coil respectively overlap with the adjacent parts of the first coil group.
[0011] Preferably, the eleventh coil is stacked above the fourth coil, the fifth coil, and the first coil group. The eleventh coil overlaps with at least part of the fourth coil, at least part of the fifth coil, and at least part of the first coil group respectively to enhance the signal in the coverage area of the eleventh coil;
[0012] The twelfth coil is stacked above the fourth coil, the fifth coil, the eighth coil, and the ninth coil. The twelfth coil overlaps with at least part of the fourth coil, at least part of the fifth coil, at least part of the eighth coil, and at least part of the ninth coil respectively to enhance the signal in the coverage area of the twelfth coil;
[0013] The adjacent part of the eleventh coil overlaps with the adjacent part of the twelfth coil.
[0014] Preferably, the thirteenth coil is stacked above the third coil, the fourth coil, the seventh coil, and the eighth coil. The thirteenth coil overlaps with at least part of the third coil, at least part of the fourth coil, at least part of the seventh coil, and at least part of the eighth coil respectively to enhance the signal in the coverage area of the thirteenth coil;
[0015] The fourteenth coil is stacked above the eighth coil, the ninth coil, and the twelfth coil. The fourteenth coil overlaps with at least part of the eighth coil, at least part of the ninth coil, and at least part of the twelfth coil respectively to enhance the signal in the coverage area of the fourteenth coil;
[0016] The fifteenth coil is stacked above the fifth coil, the sixth coil, the ninth coil, and the tenth coil. The fifteenth coil overlaps with at least part of the fifth coil, at least part of the sixth coil, at least part of the ninth coil, and at least part of the tenth coil respectively to enhance the signal in the coverage area of the fifteenth coil;
[0017] The sixteenth coil is stacked above the fourth coil, the fifth coil, the eleventh coil, and the twelfth coil. The sixteenth coil overlaps with at least part of the fourth coil, at least part of the fifth coil, at least part of the eleventh coil, and at least part of the twelfth coil respectively to enhance the signal in the coverage area of the sixteenth coil.
[0018] Another technical solution of the utility model is a non-invasive prostate coil device, including a flexible shell, in which the multi-channel coil as described above is arranged, an output matching board and a preamplifier are fixed on the multi-channel coil, the output matching board is connected to the preamplifier, and the preamplifier is connected to an imaging device through a wire, and the shell and the multi-channel coil are bent and fitted along the abdomen and crotch of the human body to collect signals from the fitted parts.
[0019] Preferably, the shell includes an integrally formed first shell and a second shell, the first shell is bent and fits along the human body's crotch, and the first coil group is arranged in the first shell; the second shell is bent and fits along both sides of the human body's abdomen, and the second coil group is arranged in the second shell.
[0020] Preferably, a hard inner shell is provided in the shell, and the hard inner shell is embedded in a groove provided in the inner wall of the shell; the multi-channel coil, the output matching board and the preamplifier are wrapped inside the hard inner shell.
[0021] The multi-channel coil and non-invasive prostate coil device provided by the utility model adopt a new coil unit distribution, and the adjacent coil parts overlap and decouple, the overlapping coil position is stronger, and the imaging is more stable and clear. The device achieves high-definition imaging and stable imaging through multi-channel coil induction, making the MRI treatment instrument clearer and more stable to examine the internal tissue of the prostate line. At the same time, because the coil material is soft and bends freely, it can be close and comfortable to the abdomen and crotch of the human body, and more closely fit the outer surface of the prostate area, thereby achieving a better imaging effect. In addition, the non-invasive prostate coil device provided by the utility model can be used together with the spinal coil to achieve a more comprehensive high-definition imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the arrangement structure of the multi-channel coils of the utility model;
[0023] Figure 2 It is a schematic diagram of the arrangement of the multi-channel coils of the utility model;
[0024] Figure 3 This is a schematic diagram of the non-invasive prostate coil device of the utility model in a non-working state;
[0025] Figure 4 yes Figure 3 Schematic diagram of bending working state;
[0026] Figure 5 yes Figure 3 Explosion diagram of
[0027] Figure 6This is a schematic diagram of the present utility model in the state of being used by the human body.
[0028] Description of main component symbols:
[0029] Coil body 1; First coil group 11; Second coil group 12;
[0030] First coil 21; Second coil 22; Third coil 23; Fourth coil 24; Fifth coil 25; Sixth coil 26; Seventh coil 27; Eighth coil 28; Ninth coil 29; Tenth coil 30; Eleventh coil 31; Twelfth coil 32; Thirteenth coil 33; Fourteenth coil 34; Fifteenth coil 35; Sixteenth coil 36;
[0031] Housing 4; First housing 41; Second housing 42; Groove 43;
[0032] Output matching board 5;
[0033] Preamplifier 6;
[0034] Rigid inner housing 7;
[0035] Wire outlet housing 8. Detailed implementation manners
[0036] The present utility model will be further described in detail below with reference to the accompanying drawings:
[0037] Please refer to Figure 1 As shown, the present utility model provides a multi-channel coil, including a flexible coil body 1. After being bent, the coil body 1 is bent and attached along the human abdomen and hip to collect signals from the attached parts; the coil body 1 includes a first coil group 11 and a second coil group 12. The first coil group 11 is used to collect signals from the attached part of the human hip, and the second coil group 12 is used to collect signals from the attached part of the human abdomen. Since the coil body 1 is made of a flexible base material, such as a copper skin coil, it can be bent freely, can be bent according to requirements, and is closely and comfortably attached to the human abdomen and hip, so as to achieve a better imaging effect.
[0038] Please refer to Figure 1 As shown, the coil body 1 is a 16-channel coil, including a first coil 21, a second coil 22, a third coil 23, a fourth coil 24, a fifth coil 25, a sixth coil 26, a seventh coil 27, an eighth coil 28, a ninth coil 29, a tenth coil 30, an eleventh coil 31, a twelfth coil 32, a thirteenth coil 33, a fourteenth coil 34, a fifteenth coil 35, and a sixteenth coil 36; among them,
[0039] The first coil group 11 is a 2-channel coil, and the first coil 21 and the second coil 22 are arranged in the first coil group 12;
[0040] The second coil group 12 is a 14-channel coil, and the third coil 23, the fourth coil 24, the fifth coil 25, the sixth coil 26, the seventh coil 27, the eighth coil 28, the ninth coil 29, the tenth coil 30, the eleventh coil 31, the twelfth coil 32, the thirteenth coil 33, the fourteenth coil 34, the fifteenth coil 35 and the sixteenth coil 36 are arranged in the second coil group 12;
[0041] The adjacent parts of the first coil group 11 and the second coil group 12 overlap to eliminate the coupling between the first coil group 11 and the second coil group 12.
[0042] Please refer to Figure 1 As shown, the first coil 21 and the second coil 22 are both figure-eight coils. The figure-eight coils are more conducive to receiving signals perpendicular to the main magnetic field, and the imaging is clearer; the first coil 21 and the second coil 22 are arranged horizontally in sequence and the adjacent parts overlap to eliminate the coupling between the first coil 21 and the second coil 22; the adjacent parts of the second coil 22 and the second coil group 12 overlap to eliminate the coupling between the second coil 22 and the second coil group 12.
[0043] The third coil 23, the fourth coil 24, the fifth coil 25, the sixth coil 26, the seventh coil 27, the eighth coil 28, the ninth coil 29 and the tenth coil 30 are arranged in a four-row and two-column structure, and the adjacent parts of two adjacent coils overlap to eliminate the coupling between adjacent coils; the fourth coil 24 and the fifth coil 25 respectively overlap with the adjacent parts of the first coil group 11 to eliminate the coupling between the fourth coil 24 and the first coil group 11 and between the fifth coil 25 and the first coil group 11.
[0044] Specifically, the third coil 23, the fourth coil 24, the fifth coil 25, the sixth coil 26 are arranged longitudinally in sequence and the adjacent parts of two adjacent coils overlap to eliminate the coupling between the third coil 23 and the fourth coil 24, between the fourth coil 24 and the fifth coil 25, and between the fifth coil 25 and the sixth coil 26;
[0045] The seventh coil 27, the eighth coil 28, the ninth coil 29, the tenth coil 30 are arranged longitudinally in sequence and the adjacent parts of two adjacent coils overlap to eliminate the coupling between the seventh coil 27 and the eighth coil 28, between the eighth coil 28 and the ninth coil 29, and between the ninth coil 29 and the tenth coil 30;
[0046] The adjacent parts of the third coil 23 and the seventh coil 27 overlap to eliminate the coupling between the third coil 23 and the seventh coil 27;
[0047] The adjacent parts of the fourth coil 24 and the eighth coil 28 overlap to eliminate the coupling between the fourth coil 24 and the eighth coil 28;
[0048] The adjacent parts of the fifth coil 25 and the ninth coil 29 overlap to eliminate the coupling between the fifth coil 25 and the ninth coil 29;
[0049] The adjacent parts of the sixth coil 26 and the tenth coil 30 overlap to eliminate the coupling between the sixth coil 26 and the tenth coil 30.
[0050] Please refer to Figure 1 As shown, the eleventh coil 31 is stacked above the fourth coil 24, the fifth coil 25, and the first coil group 11. The eleventh coil 31 overlaps with at least part of the fourth coil 24, at least part of the fifth coil 25, and at least part of the first coil group 11 respectively to enhance the signal in the covered area of the eleventh coil 31; By setting the eleventh coil 31, the signal at the overlapping coil position is stronger, and the imaging is more stable and clearer.
[0051] The twelfth coil 32 is stacked above the fourth coil 24, the fifth coil 25, the eighth coil 28, and the ninth coil 29. The twelfth coil 32 overlaps with at least part of the fourth coil 24, at least part of the fifth coil 25, at least part of the eighth coil 28, and at least part of the ninth coil 29 respectively to enhance the signal in the covered area of the twelfth coil 32; By setting the twelfth coil 32, the signal at the overlapping coil position is stronger, and the imaging is more stable and clearer.
[0052] The adjacent parts of the eleventh coil 31 and the twelfth coil 32 overlap to eliminate the coupling between the eleventh coil 31 and the twelfth coil 32.
[0053] The thirteenth coil 33 is stacked above the third coil 23, the fourth coil 24, the seventh coil 27, and the eighth coil 28. The thirteenth coil 33 overlaps with at least part of the third coil 23, at least part of the fourth coil 24, at least part of the seventh coil 27, and at least part of the eighth coil 28 respectively to enhance the signal in the covered area of the thirteenth coil 33; By setting the thirteenth coil 33, the signal at the overlapping coil position is stronger, and the imaging is more stable and clearer.
[0054] The fourteenth coil 34 is stacked above the eighth coil 28, the ninth coil 29, and the twelfth coil 32. The fourteenth coil 34 overlaps with at least part of the eighth coil 28, at least part of the ninth coil 29, and at least part of the twelfth coil 32 respectively to enhance the signal in the covered area of the fourteenth coil 34; By setting the fourteenth coil 34, the signal at the overlapping coil position is stronger, and the imaging is more stable and clearer.
[0055] The fifteenth coil 35 is stacked above the fifth coil 25, the sixth coil 26, the ninth coil 29, and the tenth coil 30. The fifteenth coil 35 overlaps at least part of the fifth coil 25, at least part of the sixth coil 26, at least part of the ninth coil 29, and at least part of the tenth coil 30 respectively, so as to enhance the signal in the coverage area of the fifteenth coil 35; by setting the fifteenth coil 35, the signal at this stacked coil position is stronger, and the imaging is more stable and clearer.
[0056] The sixteenth coil 36 is stacked above the fourth coil 24, the fifth coil 25, the eleventh coil 31, and the twelfth coil 32. The sixteenth coil 36 overlaps at least part of the fourth coil 24, at least part of the fifth coil 25, at least part of the eleventh coil 31, and at least part of the twelfth coil 32 respectively, so as to enhance the signal in the coverage area of the sixteenth coil 36. By setting the sixteenth coil 36, the signal at this stacked coil position is further enhanced to be stronger, and the imaging is more stable and clearer.
[0057] Please refer to Figures 2 to 5 As shown, another technical solution of the present invention is a non-invasive prostate coil device, which includes a flexible housing 4. A multi-channel coil as described above is arranged in the housing 4. An output matching board 5 and a preamplifier 6 are fixed on the multi-channel coil. The output matching board 5 is connected to the preamplifier 6, and the preamplifier 6 is connected to an imaging device through a wire. The housing 4 and the multi-channel coil are bent and fitted along the human abdomen and crotch to collect signals from the fitted parts. The non-invasive prostate coil device provided by the present invention uses a housing made of a soft material and a multi-channel coil made of a soft substrate, so that the device can be bent freely, can be closely and comfortably attached to the human abdomen and crotch, and is more closely attached to the outer surface of the prostate part, thereby achieving a better imaging effect and obtaining high-definition and stable imaging; since the entire surface of the device is soft, it is convenient to bend, making it more comfortable to fit on the human body.
[0058] Please refer to Figure 4 、 Figure 5 As shown, the housing 4 includes an integrally formed first housing 41 and a second housing 42. The first housing 41 is bent and fitted along the human crotch. The first coil group 12 is arranged in the first housing 41 and bends with the first housing 41 to collect signals from the fitted part of the human crotch; the second housing 42 is bent and fitted along both sides of the human abdomen. The second coil group 12 is arranged in the second housing 42 and bends with the second housing 42 to collect signals from the fitted part of the human abdomen.
[0059] Please refer to Figure 5As shown, a rigid inner shell 7 is provided inside the housing 4, and the rigid inner shell 7 is fitted into a groove 43 formed in the inner wall of the housing 4; the multi-channel coil, the output matching board 5, and the preamplifier 6 are wrapped inside the rigid inner shell 7 to utilize the rigid inner shell 7 to protect the coil body 1 of the multi-channel coil, the output matching board 5, and the preamplifier 6, so as to avoid damage during use.
[0060] Please refer to Figure 5 As shown, the specific assembly steps of the non-invasive prostate coil device provided by the present utility model are as follows: Fix the output matching board 5 on the coil body 1 of the multi-channel coil, connect the output matching board 5 to the preamplifier 6, and then place the connected coil body 1, output matching board 5, and preamplifier 6 into the rigid inner shell 7, and lock and fix the rigid inner shell 7 with screws, so that the coil body 1, output matching board 5, preamplifier 6, and rigid inner shell 7 are combined into a whole; Place this whole into the soft film housing 4, clamp the soft film housing 4 with the wire outlet housing 8, and lock and fix it with screws.
[0061] Please refer to Figure 6 As shown, the working principle of the non-invasive prostate coil device provided by the present utility model is:
[0062] First, place the second housing 42 on the abdomen, adjust the position, then bend the first housing 41 at the end along the human hip, and then bend the second housing 42 along both sides of the abdomen and fix it with a strap or a weight bag.
[0063] The above are only the preferred embodiments of the present utility model, and all equivalent changes and modifications made within the scope of the claims of the present utility model shall fall within the scope covered by the claims of the present utility model.
Claims
1. A multi-channel coil, characterized in that: It includes a flexible coil body, which is bent and fits along the abdomen and crotch of the human body to collect signals from the fitted parts; the coil body includes a first coil group and a second coil group, the first coil group is used to collect signals from the fitted parts of the human body's crotch, and the second coil group is used to collect signals from the fitted parts of the human body's abdomen.
2. The multi-channel coil according to claim 1, characterized in that: The coil body is a 16-channel coil, including a first coil, a second coil, a third coil, a fourth coil, a fifth coil, a sixth coil, a seventh coil, an eighth coil, a ninth coil, a tenth coil, an eleventh coil, a twelfth coil, a thirteenth coil, a fourteenth coil, a fifteenth coil and a sixteenth coil.
3. The multi-channel coil according to claim 2, characterized in that: The first coil group is a 2-channel coil, and the first coil and the second coil are arranged in the first coil group; The second coil group is a 14-channel coil, and the third coil, the fourth coil, the fifth coil, the sixth coil, the seventh coil, the eighth coil, the ninth coil, the tenth coil, the eleventh coil, the twelfth coil, the thirteenth coil, the fourteenth coil, the fifteenth coil and the sixteenth coil are placed in the second coil group; The first coil group overlaps adjacent portions of the second coil group.
4. The multi-channel coil according to claim 3, characterized in that: The first coil and the second coil are both 8-shaped coils. The first coil and the second coil are arranged in sequence in transverse direction and adjacent parts overlap. The second coil overlaps adjacent parts of the second coil group.
5. The multi-channel coil according to claim 3, characterized in that: The third coil, the fourth coil, the fifth coil, the sixth coil, the seventh coil, the eighth coil, the ninth coil and the tenth coil are arranged in four rows and double columns, and adjacent parts of two adjacent coils overlap; the fourth coil and the fifth coil overlap adjacent parts of the first coil group respectively.
6. The multi-channel coil according to claim 5, characterized in that: The eleventh coil is stacked on the fourth coil, the fifth coil and the first coil group, and the eleventh coil overlaps at least a portion of the fourth coil, at least a portion of the fifth coil and at least a portion of the first coil group, respectively, to enhance the signal in the coverage area of the eleventh coil; The twelfth coil is stacked on the fourth coil, the fifth coil, the eighth coil and the ninth coil, and the twelfth coil overlaps at least a portion of the fourth coil, at least a portion of the fifth coil, at least a portion of the eighth coil and at least a portion of the ninth coil, so as to enhance the signal in the coverage area of the twelfth coil; The eleventh coil overlaps an adjacent portion of the twelfth coil.
7. The multi-channel coil according to claim 6, characterized in that: The thirteenth coil is stacked on the third coil, the fourth coil, the seventh coil and the eighth coil, and the thirteenth coil overlaps at least a portion of the third coil, at least a portion of the fourth coil, at least a portion of the seventh coil and at least a portion of the eighth coil, respectively, so as to enhance the signal in the coverage area of the thirteenth coil; The fourteenth coil is stacked on the eighth coil, the ninth coil and the twelfth coil, and the fourteenth coil overlaps at least a portion of the eighth coil, at least a portion of the ninth coil and at least a portion of the twelfth coil, respectively, so as to enhance the signal in the coverage area of the fourteenth coil; The fifteenth coil is stacked on the fifth coil, the sixth coil, the ninth coil and the tenth coil, and the fifteenth coil overlaps at least a portion of the fifth coil, at least a portion of the sixth coil, at least a portion of the ninth coil and at least a portion of the tenth coil, respectively, to enhance the signal in the coverage area of the fifteenth coil; The sixteenth coil is stacked above the fourth coil, the fifth coil, the eleventh coil and the twelfth coil, and the sixteenth coil overlaps with at least part of the fourth coil, at least part of the fifth coil, at least part of the eleventh coil and at least part of the twelfth coil respectively, so as to enhance the signal in the coverage area of the sixteenth coil.
8. A non-invasive prostate coil device, characterized in that: It comprises a flexible shell, in which a multi-channel coil as described in any one of claims 1 to 7 is arranged, an output matching board and a preamplifier are fixed on the multi-channel coil, the output matching board is connected to the preamplifier, and the preamplifier is connected to an imaging device through a wire, and the shell and the multi-channel coil are bent and fitted along the abdomen and crotch of the human body to collect signals from the fitted parts.
9. The non-invasive prostate coil device according to claim 8, characterized in that: The shell includes an integrally formed first shell and a second shell. The first shell is bent and fitted along the crotch of the human body, and the first coil group is arranged in the first shell. The second shell is bent and fitted along both sides of the abdomen of the human body, and the second coil group is arranged in the second shell.
10. The non-invasive prostate coil device according to claim 8, characterized in that: A hard inner shell is arranged in the shell, and the hard inner shell is embedded in a groove opened in the inner wall of the shell; the multi-channel coil, the output matching board and the preamplifier are wrapped inside the hard inner shell.